Analysis

  • max time kernel
    49s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    25-05-2022 02:09

General

  • Target

    b94b63b0c1d433e515f92616d6c230fe82c8b1ef76aa5aa3d71f33bef3eaac9b.exe

  • Size

    348KB

  • MD5

    c1128a0260d4f93569a5859d35350101

  • SHA1

    06fb59373553f98939d9d534df61ddbe0ad571b2

  • SHA256

    b94b63b0c1d433e515f92616d6c230fe82c8b1ef76aa5aa3d71f33bef3eaac9b

  • SHA512

    9148d7db8a0cc59a624f9bfae62b66b30eae45aeaaab5be26e05afa037d31c240edd933beacf3f970453b4facec0f7387694c1aff334cfbd02ca125affc5b3d0

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b94b63b0c1d433e515f92616d6c230fe82c8b1ef76aa5aa3d71f33bef3eaac9b.exe
    "C:\Users\Admin\AppData\Local\Temp\b94b63b0c1d433e515f92616d6c230fe82c8b1ef76aa5aa3d71f33bef3eaac9b.exe"
    1⤵
    • Modifies system executable filetype association
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1988
    • C:\Users\Admin\AppData\Local\Temp\3582-490\b94b63b0c1d433e515f92616d6c230fe82c8b1ef76aa5aa3d71f33bef3eaac9b.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\b94b63b0c1d433e515f92616d6c230fe82c8b1ef76aa5aa3d71f33bef3eaac9b.exe"
      2⤵
      • Executes dropped EXE
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:2032

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\b94b63b0c1d433e515f92616d6c230fe82c8b1ef76aa5aa3d71f33bef3eaac9b.exe

    Filesize

    308KB

    MD5

    e1210e05b38ebb28f9f0058762c44d7d

    SHA1

    076d99997b9eeb4993a1be833108da48a0bab063

    SHA256

    d22a83431117b220c7c69cc172caab5cfc95e7c4d30cc4d469860c2daf336abb

    SHA512

    c7a1b5ede5c14eeb6e2bf5ac6739c3224dd5ba3f1f1dc4ccf1cb44b3202809a04f737ec14d4659b43813da2e095c44753c478dc4a050f2a1860e6e3657b8977a

  • C:\Users\Admin\AppData\Local\Temp\3582-490\b94b63b0c1d433e515f92616d6c230fe82c8b1ef76aa5aa3d71f33bef3eaac9b.exe

    Filesize

    308KB

    MD5

    e1210e05b38ebb28f9f0058762c44d7d

    SHA1

    076d99997b9eeb4993a1be833108da48a0bab063

    SHA256

    d22a83431117b220c7c69cc172caab5cfc95e7c4d30cc4d469860c2daf336abb

    SHA512

    c7a1b5ede5c14eeb6e2bf5ac6739c3224dd5ba3f1f1dc4ccf1cb44b3202809a04f737ec14d4659b43813da2e095c44753c478dc4a050f2a1860e6e3657b8977a

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\3582-490\b94b63b0c1d433e515f92616d6c230fe82c8b1ef76aa5aa3d71f33bef3eaac9b.exe

    Filesize

    308KB

    MD5

    e1210e05b38ebb28f9f0058762c44d7d

    SHA1

    076d99997b9eeb4993a1be833108da48a0bab063

    SHA256

    d22a83431117b220c7c69cc172caab5cfc95e7c4d30cc4d469860c2daf336abb

    SHA512

    c7a1b5ede5c14eeb6e2bf5ac6739c3224dd5ba3f1f1dc4ccf1cb44b3202809a04f737ec14d4659b43813da2e095c44753c478dc4a050f2a1860e6e3657b8977a

  • memory/1988-54-0x00000000754A1000-0x00000000754A3000-memory.dmp

    Filesize

    8KB

  • memory/2032-56-0x0000000000000000-mapping.dmp